Graphical representation of the genetic codes in the three-dimensional space of objective function values under the general model. The indidvidual plots correspond to the scenarios in which changes in polarity of amino acids were optimized for one of the three codon positions (A, B, C) or for all of them (D). The red dot represents the standard genetic code, green dots – the initial population of random codes, blue dots – the codes which minimize the objective functions, orange dots – the codes which maximize the objective functions.